Which of the following are decomposition reactions? CH4 (g) + O2 (g) → CO2 (g) + H2O (l) CaO (s) + CO2 (g) → CaCO3 (s) Mg (s) + O2 (g) → MgO (s) PbCO3 (s) → PbO (s) + CO2 (g)

Sugar is dissolved in water. which is the solute? sugar neither both water

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?